The average bus between Howth and Trim Castle takes 2h 5m and the fastest bus takes 1h 42m. There is a bus service every few hours from Howth to Trim Castle. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run hourly between Howth and Trim Castle. The earliest departure is at 6:30 AM in the morning, and the last departure from Howth is at 11:33 PM which arrives into Trim Castle at 8:28 AM. All services require a transfer at Talbot St East and take an average of 2h 5m. The schedules shown below are for the next available departures.

2h • 1 change

2h 15m • 1 change

2h 25m • 1 change

2h 31m • 1 change

1h 55m • 1 change

1h 59m • 1 change

2h 1m • 1 change

2h • 1 change

1h 43m • 1 change

2h 6m • 1 change

1h 49m • 1 change

1h 53m • 1 change

1h 49m • 1 change

2h 8m • 1 change

1h 50m • 1 change

1h 54m • 1 change
Want to know about travelling from Howth to Trim Castle? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct bus from Howth to Trim Castle. However, there are services departing from Howth station and arriving at Trim Castle station via Talbot St East. The journey, including transfers, takes approximately 2h 5m.
Howth to Trim Castle bus services, operated by Dublin Bus, depart from Main Street Howth station.
Howth to Trim Castle bus services, operated by Dublin Bus, arrive at Trim station.
The distance between Howth and Trim Castle is 51.5 km. The road distance is 60 km.
You can take a bus from Main Street Howth to Trim Castle via Talbot St East, Dublin Busáras, and Trim in around 2h 28m.